ACC membership vs Big XII membership

I realize this is a "no-brainer" in terms of what schools SMU would prefer to be aligned with from an academic standpoint but watching the Houston @ TCU basketball game tonight I sure wish we had been invited to the Big XII long ago. Much to be said for playing against your former SWC mates and playing more regional games. I'm looking forward to ACC hoops competition but the Big XII is a good hoops conference as well. I'm just not sure who our ACC "rival" will be or if we will even have one.